<?php

    /**
     * PHPExcel_Writer_Excel2007
     * Copyright (c) 2006 - 2015 PHPExcel
     * This library is free software; you can redistribute it and/or
     * modify it under the terms of the GNU Lesser General Public
     * License as published by the Free Software Foundation; either
     * version 2.1 of the License, or (at your option) any later version.
     * This library is distributed in the hope that it will be useful,
     * but WITHOUT ANY WARRANTY; without even the implied warranty of
     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     * Lesser General Public License for more details.
     * You should have received a copy of the GNU Lesser General Public
     * License along with this library; if not, write to the Free Software
     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
     * @category   PHPExcel
     * @package    PHPExcel_Writer_Excel2007
     * @copyright  Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel)
     * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt    LGPL
     * @version    ##VERSION##, ##DATE##
     */
    class PHPExcel_Writer_Excel2007 extends PHPExcel_Writer_Abstract implements PHPExcel_Writer_IWriter {
        /**
         * Pre-calculate formulas
         * Forces PHPExcel to recalculate all formulae in a workbook when saving, so that the pre-calculated values are
         *    immediately available to MS Excel or other office spreadsheet viewer when opening the file
         * Overrides the default TRUE for this specific writer for performance reasons
         * @var boolean
         */
        protected $preCalculateFormulas = false;
        /**
         * Office2003 compatibility
         * @var boolean
         */
        private $office2003compatibility = false;
        /**
         * Private writer parts
         * @var PHPExcel_Writer_Excel2007_WriterPart[]
         */
        private $writerParts = [];
        /**
         * Private PHPExcel
         * @var PHPExcel
         */
        private $spreadSheet;
        /**
         * Private string table
         * @var string[]
         */
        private $stringTable = [];
        /**
         * Private unique PHPExcel_Style_Conditional HashTable
         * @var PHPExcel_HashTable
         */
        private $stylesConditionalHashTable;
        /**
         * Private unique PHPExcel_Style HashTable
         * @var PHPExcel_HashTable
         */
        private $styleHashTable;
        /**
         * Private unique PHPExcel_Style_Fill HashTable
         * @var PHPExcel_HashTable
         */
        private $fillHashTable;
        /**
         * Private unique PHPExcel_Style_Font HashTable
         * @var PHPExcel_HashTable
         */
        private $fontHashTable;
        /**
         * Private unique PHPExcel_Style_Borders HashTable
         * @var PHPExcel_HashTable
         */
        private $bordersHashTable;
        /**
         * Private unique PHPExcel_Style_NumberFormat HashTable
         * @var PHPExcel_HashTable
         */
        private $numFmtHashTable;
        /**
         * Private unique PHPExcel_Worksheet_BaseDrawing HashTable
         * @var PHPExcel_HashTable
         */
        private $drawingHashTable;

        /**
         * Create a new PHPExcel_Writer_Excel2007
         * @param     PHPExcel $pPHPExcel
         */
        public function __construct(PHPExcel $pPHPExcel = null) {
            // Assign PHPExcel
            $this->setPHPExcel($pPHPExcel);
            $writerPartsArray = [
                'stringtable'       => 'PHPExcel_Writer_Excel2007_StringTable',
                'contenttypes'      => 'PHPExcel_Writer_Excel2007_ContentTypes',
                'docprops'          => 'PHPExcel_Writer_Excel2007_DocProps',
                'rels'              => 'PHPExcel_Writer_Excel2007_Rels',
                'theme'             => 'PHPExcel_Writer_Excel2007_Theme',
                'style'             => 'PHPExcel_Writer_Excel2007_Style',
                'workbook'          => 'PHPExcel_Writer_Excel2007_Workbook',
                'worksheet'         => 'PHPExcel_Writer_Excel2007_Worksheet',
                'drawing'           => 'PHPExcel_Writer_Excel2007_Drawing',
                'comments'          => 'PHPExcel_Writer_Excel2007_Comments',
                'chart'             => 'PHPExcel_Writer_Excel2007_Chart',
                'relsvba'           => 'PHPExcel_Writer_Excel2007_RelsVBA',
                'relsribbonobjects' => 'PHPExcel_Writer_Excel2007_RelsRibbon'
            ];
            //    Initialise writer parts
            //        and Assign their parent IWriters
            foreach ($writerPartsArray as $writer => $class) {
                $this->writerParts[$writer] = new $class($this);
            }
            $hashTablesArray = [
                'stylesConditionalHashTable',
                'fillHashTable',
                'fontHashTable',
                'bordersHashTable',
                'numFmtHashTable',
                'drawingHashTable',
                'styleHashTable'
            ];
            // Set HashTable variables
            foreach ($hashTablesArray as $tableName) {
                $this->$tableName = new PHPExcel_HashTable();
            }
        }

        /**
         * Set PHPExcel object
         * @param     PHPExcel $pPHPExcel PHPExcel object
         * @throws    PHPExcel_Writer_Exception
         * @return PHPExcel_Writer_Excel2007
         */
        public function setPHPExcel(PHPExcel $pPHPExcel = null) {
            $this->spreadSheet = $pPHPExcel;
            return $this;
        }

        /**
         * Save PHPExcel to file
         * @param     string $pFilename
         * @throws     PHPExcel_Writer_Exception
         */
        public function save($pFilename = null) {
            if ($this->spreadSheet !== null) {
                // garbage collect
                $this->spreadSheet->garbageCollect();
                // If $pFilename is php://output or php://stdout, make it a temporary file...
                $originalFilename = $pFilename;
                if (strtolower($pFilename) == 'php://output' || strtolower($pFilename) == 'php://stdout') {
                    $pFilename = @tempnam(PHPExcel_Shared_File::sys_get_temp_dir(), 'phpxltmp');
                    if ($pFilename == '') {
                        $pFilename = $originalFilename;
                    }
                }
                $saveDebugLog = PHPExcel_Calculation::getInstance($this->spreadSheet)->getDebugLog()->getWriteDebugLog();
                PHPExcel_Calculation::getInstance($this->spreadSheet)->getDebugLog()->setWriteDebugLog(false);
                $saveDateReturnType = PHPExcel_Calculation_Functions::getReturnDateType();
                PHPExcel_Calculation_Functions::setReturnDateType(PHPExcel_Calculation_Functions::RETURNDATE_EXCEL);
                // Create string lookup table
                $this->stringTable = [];
                for ($i = 0; $i < $this->spreadSheet->getSheetCount(); ++$i) {
                    $this->stringTable = $this->getWriterPart('StringTable')->createStringTable($this->spreadSheet->getSheet($i), $this->stringTable);
                }
                // Create styles dictionaries
                $this->styleHashTable->addFromSource($this->getWriterPart('Style')->allStyles($this->spreadSheet));
                $this->stylesConditionalHashTable->addFromSource($this->getWriterPart('Style')->allConditionalStyles($this->spreadSheet));
                $this->fillHashTable->addFromSource($this->getWriterPart('Style')->allFills($this->spreadSheet));
                $this->fontHashTable->addFromSource($this->getWriterPart('Style')->allFonts($this->spreadSheet));
                $this->bordersHashTable->addFromSource($this->getWriterPart('Style')->allBorders($this->spreadSheet));
                $this->numFmtHashTable->addFromSource($this->getWriterPart('Style')->allNumberFormats($this->spreadSheet));
                // Create drawing dictionary
                $this->drawingHashTable->addFromSource($this->getWriterPart('Drawing')->allDrawings($this->spreadSheet));
                // Create new ZIP file and open it for writing
                $zipClass = PHPExcel_Settings::getZipClass();
                $objZip   = new $zipClass();
                //    Retrieve OVERWRITE and CREATE constants from the instantiated zip class
                //    This method of accessing constant values from a dynamic class should work with all appropriate versions of PHP
                $ro           = new ReflectionObject($objZip);
                $zipOverWrite = $ro->getConstant('OVERWRITE');
                $zipCreate    = $ro->getConstant('CREATE');
                if (file_exists($pFilename)) {
                    unlink($pFilename);
                }
                // Try opening the ZIP file
                if ($objZip->open($pFilename, $zipOverWrite) !== true) {
                    if ($objZip->open($pFilename, $zipCreate) !== true) {
                        throw new PHPExcel_Writer_Exception("Could not open " . $pFilename . " for writing.");
                    }
                }
                // Add [Content_Types].xml to ZIP file
                $objZip->addFromString('[Content_Types].xml', $this->getWriterPart('ContentTypes')->writeContentTypes($this->spreadSheet, $this->includeCharts));
                //if hasMacros, add the vbaProject.bin file, Certificate file(if exists)
                if ($this->spreadSheet->hasMacros()) {
                    $macrosCode = $this->spreadSheet->getMacrosCode();
                    if (!is_null($macrosCode)) {// we have the code ?
                        $objZip->addFromString('xl/vbaProject.bin', $macrosCode);//allways in 'xl', allways named vbaProject.bin
                        if ($this->spreadSheet->hasMacrosCertificate()) {//signed macros ?
                            // Yes : add the certificate file and the related rels file
                            $objZip->addFromString('xl/vbaProjectSignature.bin', $this->spreadSheet->getMacrosCertificate());
                            $objZip->addFromString('xl/_rels/vbaProject.bin.rels', $this->getWriterPart('RelsVBA')->writeVBARelationships($this->spreadSheet));
                        }
                    }
                }
                //a custom UI in this workbook ? add it ("base" xml and additional objects (pictures) and rels)
                if ($this->spreadSheet->hasRibbon()) {
                    $tmpRibbonTarget = $this->spreadSheet->getRibbonXMLData('target');
                    $objZip->addFromString($tmpRibbonTarget, $this->spreadSheet->getRibbonXMLData('data'));
                    if ($this->spreadSheet->hasRibbonBinObjects()) {
                        $tmpRootPath      = dirname($tmpRibbonTarget) . '/';
                        $ribbonBinObjects = $this->spreadSheet->getRibbonBinObjects('data');//the files to write
                        foreach ($ribbonBinObjects as $aPath => $aContent) {
                            $objZip->addFromString($tmpRootPath . $aPath, $aContent);
                        }
                        //the rels for files
                        $objZip->addFromString($tmpRootPath . '_rels/' . basename($tmpRibbonTarget) . '.rels', $this->getWriterPart('RelsRibbonObjects')->writeRibbonRelationships($this->spreadSheet));
                    }
                }
                // Add relationships to ZIP file
                $objZip->addFromString('_rels/.rels', $this->getWriterPart('Rels')->writeRelationships($this->spreadSheet));
                $objZip->addFromString('xl/_rels/workbook.xml.rels', $this->getWriterPart('Rels')->writeWorkbookRelationships($this->spreadSheet));
                // Add document properties to ZIP file
                $objZip->addFromString('docProps/app.xml', $this->getWriterPart('DocProps')->writeDocPropsApp($this->spreadSheet));
                $objZip->addFromString('docProps/core.xml', $this->getWriterPart('DocProps')->writeDocPropsCore($this->spreadSheet));
                $customPropertiesPart = $this->getWriterPart('DocProps')->writeDocPropsCustom($this->spreadSheet);
                if ($customPropertiesPart !== null) {
                    $objZip->addFromString('docProps/custom.xml', $customPropertiesPart);
                }
                // Add theme to ZIP file
                $objZip->addFromString('xl/theme/theme1.xml', $this->getWriterPart('Theme')->writeTheme($this->spreadSheet));
                // Add string table to ZIP file
                $objZip->addFromString('xl/sharedStrings.xml', $this->getWriterPart('StringTable')->writeStringTable($this->stringTable));
                // Add styles to ZIP file
                $objZip->addFromString('xl/styles.xml', $this->getWriterPart('Style')->writeStyles($this->spreadSheet));
                // Add workbook to ZIP file
                $objZip->addFromString('xl/workbook.xml', $this->getWriterPart('Workbook')->writeWorkbook($this->spreadSheet, $this->preCalculateFormulas));
                $chartCount = 0;
                // Add worksheets
                for ($i = 0; $i < $this->spreadSheet->getSheetCount(); ++$i) {
                    $objZip->addFromString('xl/worksheets/sheet' . ($i + 1) . '.xml', $this->getWriterPart('Worksheet')
                                                                                           ->writeWorksheet($this->spreadSheet->getSheet($i), $this->stringTable, $this->includeCharts)
                    );
                    if ($this->includeCharts) {
                        $charts = $this->spreadSheet->getSheet($i)->getChartCollection();
                        if (count($charts) > 0) {
                            foreach ($charts as $chart) {
                                $objZip->addFromString('xl/charts/chart' . ($chartCount + 1) . '.xml', $this->getWriterPart('Chart')->writeChart($chart, $this->preCalculateFormulas));
                                $chartCount++;
                            }
                        }
                    }
                }
                $chartRef1 = $chartRef2 = 0;
                // Add worksheet relationships (drawings, ...)
                for ($i = 0; $i < $this->spreadSheet->getSheetCount(); ++$i) {
                    // Add relationships
                    $objZip->addFromString('xl/worksheets/_rels/sheet' . ($i + 1) . '.xml.rels', $this->getWriterPart('Rels')
                                                                                                      ->writeWorksheetRelationships($this->spreadSheet->getSheet($i), ($i + 1), $this->includeCharts)
                    );
                    $drawings     = $this->spreadSheet->getSheet($i)->getDrawingCollection();
                    $drawingCount = count($drawings);
                    if ($this->includeCharts) {
                        $chartCount = $this->spreadSheet->getSheet($i)->getChartCount();
                    }
                    // Add drawing and image relationship parts
                    if (($drawingCount > 0) || ($chartCount > 0)) {
                        // Drawing relationships
                        $objZip->addFromString('xl/drawings/_rels/drawing' . ($i + 1) . '.xml.rels', $this->getWriterPart('Rels')
                                                                                                          ->writeDrawingRelationships($this->spreadSheet->getSheet($i), $chartRef1, $this->includeCharts)
                        );
                        // Drawings
                        $objZip->addFromString('xl/drawings/drawing' . ($i + 1) . '.xml', $this->getWriterPart('Drawing')
                                                                                               ->writeDrawings($this->spreadSheet->getSheet($i), $chartRef2, $this->includeCharts)
                        );
                    }
                    // Add comment relationship parts
                    if (count($this->spreadSheet->getSheet($i)->getComments()) > 0) {
                        // VML Comments
                        $objZip->addFromString('xl/drawings/vmlDrawing' . ($i + 1) . '.vml', $this->getWriterPart('Comments')->writeVMLComments($this->spreadSheet->getSheet($i)));
                        // Comments
                        $objZip->addFromString('xl/comments' . ($i + 1) . '.xml', $this->getWriterPart('Comments')->writeComments($this->spreadSheet->getSheet($i)));
                    }
                    // Add header/footer relationship parts
                    if (count($this->spreadSheet->getSheet($i)->getHeaderFooter()->getImages()) > 0) {
                        // VML Drawings
                        $objZip->addFromString('xl/drawings/vmlDrawingHF' . ($i + 1) . '.vml', $this->getWriterPart('Drawing')->writeVMLHeaderFooterImages($this->spreadSheet->getSheet($i)));
                        // VML Drawing relationships
                        $objZip->addFromString('xl/drawings/_rels/vmlDrawingHF' . ($i + 1) . '.vml.rels', $this->getWriterPart('Rels')
                                                                                                               ->writeHeaderFooterDrawingRelationships($this->spreadSheet->getSheet($i))
                        );
                        // Media
                        foreach ($this->spreadSheet->getSheet($i)->getHeaderFooter()->getImages() as $image) {
                            $objZip->addFromString('xl/media/' . $image->getIndexedFilename(), file_get_contents($image->getPath()));
                        }
                    }
                }
                // Add media
                for ($i = 0; $i < $this->getDrawingHashTable()->count(); ++$i) {
                    if ($this->getDrawingHashTable()->getByIndex($i) instanceof PHPExcel_Worksheet_Drawing) {
                        $imageContents = null;
                        $imagePath     = $this->getDrawingHashTable()->getByIndex($i)->getPath();
                        if (strpos($imagePath, 'zip://') !== false) {
                            $imagePath         = substr($imagePath, 6);
                            $imagePathSplitted = explode('#', $imagePath);
                            $imageZip = new ZipArchive();
                            $imageZip->open($imagePathSplitted[0]);
                            $imageContents = $imageZip->getFromName($imagePathSplitted[1]);
                            $imageZip->close();
                            unset($imageZip);
                        } else {
                            $imageContents = file_get_contents($imagePath);
                        }
                        $objZip->addFromString('xl/media/' . str_replace(' ', '_', $this->getDrawingHashTable()->getByIndex($i)->getIndexedFilename()), $imageContents);
                    } elseif ($this->getDrawingHashTable()->getByIndex($i) instanceof PHPExcel_Worksheet_MemoryDrawing) {
                        ob_start();
                        call_user_func($this->getDrawingHashTable()->getByIndex($i)->getRenderingFunction(), $this->getDrawingHashTable()->getByIndex($i)->getImageResource()
                        );
                        $imageContents = ob_get_contents();
                        ob_end_clean();
                        $objZip->addFromString('xl/media/' . str_replace(' ', '_', $this->getDrawingHashTable()->getByIndex($i)->getIndexedFilename()), $imageContents);
                    }
                }
                PHPExcel_Calculation_Functions::setReturnDateType($saveDateReturnType);
                PHPExcel_Calculation::getInstance($this->spreadSheet)->getDebugLog()->setWriteDebugLog($saveDebugLog);
                // Close file
                if ($objZip->close() === false) {
                    throw new PHPExcel_Writer_Exception("Could not close zip file $pFilename.");
                }
                // If a temporary file was used, copy it to the correct file stream
                if ($originalFilename != $pFilename) {
                    if (copy($pFilename, $originalFilename) === false) {
                        throw new PHPExcel_Writer_Exception("Could not copy temporary zip file $pFilename to $originalFilename.");
                    }
                    @unlink($pFilename);
                }
            } else {
                throw new PHPExcel_Writer_Exception("PHPExcel object unassigned.");
            }
        }

        /**
         * Get writer part
         * @param     string $pPartName Writer part name
         * @return     PHPExcel_Writer_Excel2007_WriterPart
         */
        public function getWriterPart($pPartName = '') {
            if ($pPartName != '' && isset($this->writerParts[strtolower($pPartName)])) {
                return $this->writerParts[strtolower($pPartName)];
            } else {
                return null;
            }
        }

        /**
         * Get PHPExcel_Worksheet_BaseDrawing HashTable
         * @return PHPExcel_HashTable
         */
        public function getDrawingHashTable() {
            return $this->drawingHashTable;
        }

        /**
         * Get PHPExcel object
         * @return PHPExcel
         * @throws PHPExcel_Writer_Exception
         */
        public function getPHPExcel() {
            if ($this->spreadSheet !== null) {
                return $this->spreadSheet;
            } else {
                throw new PHPExcel_Writer_Exception("No PHPExcel object assigned.");
            }
        }

        /**
         * Get string table
         * @return string[]
         */
        public function getStringTable() {
            return $this->stringTable;
        }

        /**
         * Get PHPExcel_Style HashTable
         * @return PHPExcel_HashTable
         */
        public function getStyleHashTable() {
            return $this->styleHashTable;
        }

        /**
         * Get PHPExcel_Style_Conditional HashTable
         * @return PHPExcel_HashTable
         */
        public function getStylesConditionalHashTable() {
            return $this->stylesConditionalHashTable;
        }

        /**
         * Get PHPExcel_Style_Fill HashTable
         * @return PHPExcel_HashTable
         */
        public function getFillHashTable() {
            return $this->fillHashTable;
        }

        /**
         * Get PHPExcel_Style_Font HashTable
         * @return PHPExcel_HashTable
         */
        public function getFontHashTable() {
            return $this->fontHashTable;
        }

        /**
         * Get PHPExcel_Style_Borders HashTable
         * @return PHPExcel_HashTable
         */
        public function getBordersHashTable() {
            return $this->bordersHashTable;
        }

        /**
         * Get PHPExcel_Style_NumberFormat HashTable
         * @return PHPExcel_HashTable
         */
        public function getNumFmtHashTable() {
            return $this->numFmtHashTable;
        }

        /**
         * Get Office2003 compatibility
         * @return boolean
         */
        public function getOffice2003Compatibility() {
            return $this->office2003compatibility;
        }

        /**
         * Set Office2003 compatibility
         * @param boolean $pValue Office2003 compatibility?
         * @return PHPExcel_Writer_Excel2007
         */
        public function setOffice2003Compatibility($pValue = false) {
            $this->office2003compatibility = $pValue;
            return $this;
        }
    }
